Which is better for a 30 A dryer circuit?

The Romex roll. It states 10 AWG, two conductors plus ground, 30 A and 600 V, and gives you one continuous 250 ft run. The Energeaster listing mixes 10 and 14 AWG and caps ampacity at 60 C conductors, so check the printed jacket before using it on a 30 A circuit.

Do both have a ground wire?

Yes, both are NM-B with ground. The Romex roll specifies a 10 AWG ground. On the Energeaster, confirm the ground size on the jacket, since its specs also mention 14 AWG and three conductors.

Both use solid copper and a 90 C rated jacket, so service life depends on installation, not brand. The Romex roll has clearer, consistent ratings, which makes it easier to install correctly and pass inspection.

Is the Energeaster roll really 10 gauge?

The title says 10 gauge, but the spec text also lists 14 AWG and a 15 A, 50 ft description. Read the print on the cable jacket when it arrives and return it if it is not 10 AWG.

Can I use either outdoors or in wet spots?

No. NM-B is for dry locations, exposed or concealed indoors. Use UF cable for wet or buried runs.

Is it worth stepping up to the Romex roll?

Yes if you need a long run or want specs you can trust at inspection. For a short indoor repair, the Energeaster length may be enough if the label checks out.

Romex 10/2 NM-B Cable 250 ft vs Energeaster 10/2 NM-B Wire

Both are 10/2 NM-B copper cable with ground for dry indoor branch circuits at up to 600 V. The real difference is the roll: the Romex roll is a long continuous run, while the Energeaster listing is inconsistent about length and gauge, so confirm the footage and wire size on the label before you buy. Buy the Romex roll for a long circuit run or a whole-room rewire. Buy Energeaster only if you need a short length and the package states 10 AWG clearly.

Choose the Romex NM-B roll if you are running a long circuit, such as a 30 A dryer, water heater or subpanel feed, and want one continuous length without splices.
Choose the Energeaster 10/2 if you only need a short run for a small repair and the packaging clearly confirms 10 AWG, two conductors plus ground.

Prices

Romex 10/2 NM-B Cable 250 ft: $334.99 at Walmart (last seen Nov 10)
Energeaster 10/2 NM-B Wire: $53.99 at McCoy's Building Supply (last seen Nov 10)
Difference: the Energeaster 10/2 NM-B Wire is $281.00 cheaper than the Romex 10/2 NM-B Cable 250 ft at the latest prices (Nov 10)

Romex Nm-B Non-Metallic Sheathed Cable With Ground, 10/2, 250 Ft. Per Roll

	Romex 10/2 NM-B Cable 250 ft	Energeaster 10/2 NM-B Wire
Roll length	250 ft per roll, one continuous run	Listed as 50 ft, 100 ft and 250 ft in different places
Wire size consistency	10 AWG throughout, 2 conductors plus ground	10 gauge in the title, but specs also mention 14 AWG and 3 conductors
Ampacity	Rated 30 A at 60 C per NM-B tables	Spec text limits ampacity to 60 C conductors, which undercuts a 10 AWG 30 A use
Jacket	Orange NM-B jacket, 600 V, 90 C	Orange jacket, 600 V, 90 C, flame retardant
Conductor	Solid copper, 10 AWG, with 10 AWG ground	Solid copper, with ground
Build and sheath	Nylon-jacketed NM-B, standard for exposed and concealed dry wiring	PVC insulation, tear-resistant sheath claimed
Label clarity	Clear trade designation and dimensions	Conflicting specs on gauge, conductor count and length

Spec	Romex 10/2 NM-B Cable 250 ft	Energeaster 10/2 NM-B Wire
color	Bronze	Orange
Number of Conductors	2C with Ground	3
Conductor Material	Copper	Copper
Length	250 ft	250 ft
Voltage Rating	600 V	600 volts
Wire Gauge	14 gauge	10 gauge
size	1	—
Trade Designation	NM-B	—
Wire Size	10 AWG	—
Jacket Color	Orange	—
Current Rating	30 A	—
Operating Temperature	90 deg C	—

Spec	Romex 10/2 NM-B Cable 250 ft	Energeaster 10/2 NM-B Wire
Nominal Outside Dia.	0.494 in x 0.210 in	—
Insulation Thickness	20mils	—
Grounding Conductor Size	10 AWG	—
Cable length	—	50ft
Gauge	—	10
Conductors	—	2
Material	—	Copper
Strands	—	1
Unit count	—	50 Feet
Package weight	—

Romex 10/2 NM-B Cable 250 ft vs Energeaster 10/2 NM-B Wire

Prices

Romex 10/2 NM-B Cable 250 ft vs Energeaster 10/2 NM-B Wire

Prices

Romex 10/2 NM-B Cable 250 ft

Energeaster 10/2 NM-B Wire

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Romex 10/2 NM-B Cable 250 ft

Energeaster 10/2 NM-B Wire

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Romex 10/2 NM-B Cable 250 ft

Energeaster 10/2 NM-B Wire

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Prices at every store

Romex 10/2 NM-B Cable 250 ft

Energeaster 10/2 NM-B Wire

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